ACTA

The Influence of Alloy Admixture on Structure and Properties of La(Fe, Co, Si)₁₃-Type Phase

P. Gębara^a, P. Pawlik^a, I. Škorvánek^b, J. Marcin^b, J.J. Wysłocki^a, M. Szwaja^a and K. Pawlik^a
^aInstitute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland
^bInstitute of Experimental Physics, Slovak Academy of Sciences, Watsonowa 47, 043 33 Kosice, Slovakia

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In the present study, the influence of Al and Ga admixture on the lattice parameters and the Curie point T_C of the La(Fe, Co, Si)₁₃ compound was discussed. The measurements were carried out on ribbon samples of LaFe_11.0 Co_0.8 Si_1.2, LaFe_11.0 Co_0.8 (Si_0.4 Al_0.6)_1.2 and LaFe_11.0 Co_0.8 Si_1.1 Ga_0.1 alloys. The samples were subjected to annealing in the inert gas atmosphere at 1323 K for 24 h. The change of lattice parameters a with admixture of Al and Ga was determined from the X-ray diffraction analysis. Furthermore, changes of the Curie point with the alloy composition were observed.

DOI: 10.12693/APhysPolA.121.1285
PACS numbers: 75.30.Sg, 75.50.Bb